File:Diagram of cleavage forms.jpg
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editDescriptionDiagram of cleavage forms.jpg |
DIAGRAM OF CLEAVAGE:FORMS. A. Radial type (Antedon ; modified from Seeliger). B. Spiral type (Discocoelis ; after Lang). C. Bilateral type (Clavelina ; after Van Beneden and Julin. The upper figure is considerably modified, the inequality between the macromeres and micromeres being exaggerated). The upper figures represent 8-celled stages seen from the upper pole. The lower figures are the corresponding 16-celled stages in the same position. In the case of unequal division the arrow points towards the smaller cell. |
Date | |
Source | https://archive.org/details/journalofmorphol08wist/page/599/mode/1up?view=theater Journal of morphology. Boston : Ginn & Co. |
Author | Wistar Institute of Anatomy and Biology |
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current | 20:42, 22 March 2024 | ![]() | 1,270 × 871 (957 KB) | Rasbak (talk | contribs) | {{information |description=DIAGRAM OF CLEAVAGE:FORMS. A. Radial type (Aztedon ; modified from Seeliger). B. Spiral type (Discocoelis ; after Lang). C. Bilateral type (Clavelina ; after Van Beneden and Julin. The upper figure is considerably modified, the inequality between the macromeres and micromeres being exaggerated). The upper figures represent 8-celled stages seen from the upper pole. The lower figures are the corresponding 16-celled stages in the same position. In the case of unequa... |
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